Heater block for pressure digestion vessels



FIG. 1 is a top perspective view of the heater block for pressure digestion vessels.

FIG. 2 is a front side view of the heater block for pressure digestion vessels.

FIG. 3 is a back side view of the heater block for pressure digestion vessels.

FIG. 4 is a top view of the heater block for pressure digestion vessels.

FIG. 5 is a bottom view of the heater block for pressure digestion vessels.

FIG. 6 is a left side view of the heater block for pressure digestion vessels; and,

FIG. 7 is a right side view of the heater block for pressure digestion vessels.

The broken lines in the drawings represent unclaimed portions of the heater block for pressure digestion vessels and form no part of the claimed design. 

CLAIM I claim the ornamental design for the heater block for pressure digestion vessels, as shown and described. 